/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.pinot.segment.local.utils;

import com.clearspring.analytics.stream.cardinality.HyperLogLog;
import java.io.IOException;
import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;


public class HyperLogLogUtilsTest {

  @Test
  public void testByteSize()
      throws IOException {
    for (int log2m = 0; log2m < 16; log2m++) {
      HyperLogLog hll = new HyperLogLog(log2m);
      int expectedByteSize = hll.getBytes().length;
      assertEquals(HyperLogLogUtils.byteSize(log2m), expectedByteSize);
      assertEquals(HyperLogLogUtils.byteSize(hll), expectedByteSize);
    }
  }
}
